Broken exhaust manifold bolts. It WILL happen to you!
I almost wish you hadn't told me this, as it has just made me very angry. I have kept some of my fault records from the gap iidtool. The two I can find both say "P2270-00 - O2 Sensor Signal Stuck Lean - Bank 1, Sensor 2 - no sub type information (A8)". And both of those times and one other I was still under factory warranty and Land Rover replaced the sensors. This all started in May of last year. So I could have had this covered under warranty if they had bothered to ask why do these keep failing. I asked them multiple times why these were all failing in such rapid fashion and there answer was it just happens. I should have come on the forum and asked. It also kills me that in my last visit before my warranty was up I specifically asked if they could look at the bolts for the manifold. They said they did and found no issues. Well we all know that is a lie. I almost guarantee they didn't check because of the amount of labor that would have been involved. I did know that at the time.
Well now I am going to call a local independent repair shop to get a quote on how much it is going to be to fix this problem. I will keep my receipt so when the enviable lawsuit happens I have a record and can maybe get some of my money back.
Well now I am going to call a local independent repair shop to get a quote on how much it is going to be to fix this problem. I will keep my receipt so when the enviable lawsuit happens I have a record and can maybe get some of my money back.
First, thank you for this information. Fortunately thus far I have no indication of an issue (2022 110 SE i6 w/ low miles @ 28k). Is it accurate the part #'s are unchanged for the bolts, and if so, do you have any ideas on a replacement/upgrade in the works? Is it your opinion it's an issue with the metal in the originals or something inherently wrong with the design?
Thx
Thx
@Saltek Motorsports Do you know if there has been any TSBs or other JLR documents talking about the problem. My local indie service provider has no clue about this and wants to do a lots of other non free diagnostic tests first. Basically he does not believe this is the problem.
Drifting
Joined: May 2025
Posts: 34
Likes: 16
From: Orange County CA
Sorry to hear that. During my warranty period I didnt have a great experience either. They like to kick the can down the road and get you out of warranty or get you to pay out of pocket. They once blamed my ditch lights for the DLR lights going out 🤣 you can guess how that went. Either way make sure whoever does it uses a welder to extract them and not drill them out.
No problem at all, Im happy to help. The worse thing that can happen in a car community is gatekeeping. As for the part numbers, they haven't changed. No supersessions have occurred either. Im currently trying to get something made with ARP so we have a good aftermarket alternative to never have to worry about this again.
No TSBs from what I have found. If the sound matches from a link I posted earlier and you have the sensor bias lean code, its 100% the manifold bolts
No problem at all, Im happy to help. The worse thing that can happen in a car community is gatekeeping. As for the part numbers, they haven't changed. No supersessions have occurred either. Im currently trying to get something made with ARP so we have a good aftermarket alternative to never have to worry about this again.
No TSBs from what I have found. If the sound matches from a link I posted earlier and you have the sensor bias lean code, its 100% the manifold bolts
Mudding
Joined: Oct 2022
Posts: 126
Likes: 189
From: CO
No problem at all, Im happy to help. The worse thing that can happen in a car community is gatekeeping. As for the part numbers, they haven't changed. No supersessions have occurred either. Im currently trying to get something made with ARP so we have a good aftermarket alternative to never have to worry about this again.
. My local indie or dealership are not high on my list right now of people to tackle this. Or maybe you want to make a trip to the Denver area. 
. Spring is really nice here and you can go through Utah and do some trails out there.Last edited by Adamalli; Apr 2, 2026 at 08:15 AM.
Three Wheeling
Joined: Feb 2022
Posts: 75
Likes: 68
@Saltek Motorsports cant thank you enough for your contributions to this community. keep us posted on any replacement bolt solution you come up with and add me to the list for an order!! going to get mine into my local shop to be proactive and replace now... all thanks to you!!! cheers!!
Last edited by smithbp; Apr 2, 2026 at 10:09 AM.
Mudding
Joined: Oct 2022
Posts: 126
Likes: 189
From: CO
So I took my Defender into my one of my local independent shops to have this looked at. As stated above I had the rattling sound (FYI that is the sheared off bolt heads rattling against the heat shield) and kept getting the O2 sensor stuck lean check engine light. The shop decided to stick a scope camera down in there to see if this was the issue. At first they couldn't see anything concerning so they started looking into other rabbit holes. For a time they even thought it might be the timing chain tensioner going bad. At this point they gave me a call, I reminded them of the bad O2 sensors. I guess this gave them pause enough to check with there camera again. This time they final found a bolt that was about in the right place but shifted just enough they could tell it wasn't connected. And with that they proceeded with the bolt changeout.
They found I had 5 bolts completely sheered off. They broke another three trying to extract the remaining bolts. All in I paid around $3,500 to have this done. This included only 10 hours of labor and 1 hour diagnostic fee. I am pretty sure they spent at least 8 hours troubleshooting before actually doing the work. It also included new gasket, bolts, a new coolant hose that would not reseal after removal, and I had them do the spark plugs. They did have to weld a nut to all 5 broken bolts to exact them.
I was the first one they have had seen this problem. Interesting they did say they have seen these bolts on skid plates of other vehicles and heard that rattling sound before but could never figure where the bolts were coming from or what was causing the noise. These other vehicles where brought in for other reasons.
If you are in Denver area and want this fixed check out roadsidewerx as they now know what is going on. JC British hasn't dealt with this before and didn't believe me that this could be a problem. I had to ask them three times for a quote. I have no clue if either of the two dealers in town know what is going on. Though they would have been double the cost easily.
They found I had 5 bolts completely sheered off. They broke another three trying to extract the remaining bolts. All in I paid around $3,500 to have this done. This included only 10 hours of labor and 1 hour diagnostic fee. I am pretty sure they spent at least 8 hours troubleshooting before actually doing the work. It also included new gasket, bolts, a new coolant hose that would not reseal after removal, and I had them do the spark plugs. They did have to weld a nut to all 5 broken bolts to exact them.
I was the first one they have had seen this problem. Interesting they did say they have seen these bolts on skid plates of other vehicles and heard that rattling sound before but could never figure where the bolts were coming from or what was causing the noise. These other vehicles where brought in for other reasons.
If you are in Denver area and want this fixed check out roadsidewerx as they now know what is going on. JC British hasn't dealt with this before and didn't believe me that this could be a problem. I had to ask them three times for a quote. I have no clue if either of the two dealers in town know what is going on. Though they would have been double the cost easily.
Drifting
Joined: May 2025
Posts: 34
Likes: 16
From: Orange County CA
So I took my Defender into my one of my local independent shops to have this looked at. As stated above I had the rattling sound (FYI that is the sheared off bolt heads rattling against the heat shield) and kept getting the O2 sensor stuck lean check engine light. The shop decided to stick a scope camera down in there to see if this was the issue. At first they couldn't see anything concerning so they started looking into other rabbit holes. For a time they even thought it might be the timing chain tensioner going bad. At this point they gave me a call, I reminded them of the bad O2 sensors. I guess this gave them pause enough to check with there camera again. This time they final found a bolt that was about in the right place but shifted just enough they could tell it wasn't connected. And with that they proceeded with the bolt changeout.
They found I had 5 bolts completely sheered off. They broke another three trying to extract the remaining bolts. All in I paid around $3,500 to have this done. This included only 10 hours of labor and 1 hour diagnostic fee. I am pretty sure they spent at least 8 hours troubleshooting before actually doing the work. It also included new gasket, bolts, a new coolant hose that would not reseal after removal, and I had them do the spark plugs. They did have to weld a nut to all 5 broken bolts to exact them.
I was the first one they have had seen this problem. Interesting they did say they have seen these bolts on skid plates of other vehicles and heard that rattling sound before but could never figure where the bolts were coming from or what was causing the noise. These other vehicles where brought in for other reasons.
If you are in Denver area and want this fixed check out roadsidewerx as they now know what is going on. JC British hasn't dealt with this before and didn't believe me that this could be a problem. I had to ask them three times for a quote. I have no clue if either of the two dealers in town know what is going on. Though they would have been double the cost easily.
They found I had 5 bolts completely sheered off. They broke another three trying to extract the remaining bolts. All in I paid around $3,500 to have this done. This included only 10 hours of labor and 1 hour diagnostic fee. I am pretty sure they spent at least 8 hours troubleshooting before actually doing the work. It also included new gasket, bolts, a new coolant hose that would not reseal after removal, and I had them do the spark plugs. They did have to weld a nut to all 5 broken bolts to exact them.
I was the first one they have had seen this problem. Interesting they did say they have seen these bolts on skid plates of other vehicles and heard that rattling sound before but could never figure where the bolts were coming from or what was causing the noise. These other vehicles where brought in for other reasons.
If you are in Denver area and want this fixed check out roadsidewerx as they now know what is going on. JC British hasn't dealt with this before and didn't believe me that this could be a problem. I had to ask them three times for a quote. I have no clue if either of the two dealers in town know what is going on. Though they would have been double the cost easily.
Mudding
Joined: Oct 2022
Posts: 126
Likes: 189
From: CO
Simply installed new OEM. They didn't really want the responsibility of trying something different in such a high heat area. They did say the bolts seemed completely inadequate for what they were holding together. I will just plan to replace in another 60k miles.
Drifting
Joined: May 2025
Posts: 34
Likes: 16
From: Orange County CA
Ok thank you - I only have 30k on my 2022, with no indication of an issue yet, but might have them replace proactively the next time Im in the Denver area. Hopefully Saltek comes up with an improved bolt solution in the interim.
TReK
Joined: Oct 2007
Posts: 2,767
Likes: 1,979
From: Pacific NW
So I took my Defender into my one of my local independent shops to have this looked at. As stated above I had the rattling sound (FYI that is the sheared off bolt heads rattling against the heat shield) and kept getting the O2 sensor stuck lean check engine light. The shop decided to stick a scope camera down in there to see if this was the issue. At first they couldn't see anything concerning so they started looking into other rabbit holes. For a time they even thought it might be the timing chain tensioner going bad. At this point they gave me a call, I reminded them of the bad O2 sensors. I guess this gave them pause enough to check with there camera again. This time they final found a bolt that was about in the right place but shifted just enough they could tell it wasn't connected. And with that they proceeded with the bolt changeout.
They found I had 5 bolts completely sheered off. They broke another three trying to extract the remaining bolts. All in I paid around $3,500 to have this done. This included only 10 hours of labor and 1 hour diagnostic fee. I am pretty sure they spent at least 8 hours troubleshooting before actually doing the work. It also included new gasket, bolts, a new coolant hose that would not reseal after removal, and I had them do the spark plugs. They did have to weld a nut to all 5 broken bolts to exact them.
I was the first one they have had seen this problem. Interesting they did say they have seen these bolts on skid plates of other vehicles and heard that rattling sound before but could never figure where the bolts were coming from or what was causing the noise. These other vehicles where brought in for other reasons.
If you are in Denver area and want this fixed check out roadsidewerx as they now know what is going on. JC British hasn't dealt with this before and didn't believe me that this could be a problem. I had to ask them three times for a quote. I have no clue if either of the two dealers in town know what is going on. Though they would have been double the cost easily.
They found I had 5 bolts completely sheered off. They broke another three trying to extract the remaining bolts. All in I paid around $3,500 to have this done. This included only 10 hours of labor and 1 hour diagnostic fee. I am pretty sure they spent at least 8 hours troubleshooting before actually doing the work. It also included new gasket, bolts, a new coolant hose that would not reseal after removal, and I had them do the spark plugs. They did have to weld a nut to all 5 broken bolts to exact them.
I was the first one they have had seen this problem. Interesting they did say they have seen these bolts on skid plates of other vehicles and heard that rattling sound before but could never figure where the bolts were coming from or what was causing the noise. These other vehicles where brought in for other reasons.
If you are in Denver area and want this fixed check out roadsidewerx as they now know what is going on. JC British hasn't dealt with this before and didn't believe me that this could be a problem. I had to ask them three times for a quote. I have no clue if either of the two dealers in town know what is going on. Though they would have been double the cost easily.
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